Zhengkang was founded only slightly later than Yonghe, both of which are old Taiwanese soy milk brands, but Zhengkang only entered the Chinese mainland market in 2005, and unlike Yonghe has offline soy milk stores, its popularity and market share are not as good as Yonghe.

Zhengkang has a soybean milk production line with a high degree of automation, and in 2017 passed the on-site inspection of the US FDA officials, the brand pays attention to the diversity of soybean milk tastes, as many as 30 kinds of flavors, but its products are basically soybean milk drinks, the protein content is about 1.5g/100ml, basically no nutritional value, in addition to the original, black bean flavor formula is the simplest, the flavor of soybean milk in addition to the common chocolate flavor, there are taro puree, green apples, strawberries and eggs and other brands do not have the flavor, only suitable for tasting.

Despite the variety of flavours, mainland e-commerce platforms still mainly sell plain and black soybean milk.